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# solving equations watch

1. I have these equations and I don't know how to go about solving them:
x + y + z = 1
(a + 1)x + y + (a2 + a)z = 1
(a − 2)x + (a − 2)y − az = b

Thanks
2. You could use Gaussian elimination or find the inverse of the appropriate 3x3 matrix.
3. Thanks, how would I begin going about Gaussian Elimination?
4. I could latex up a whole example or I could refer you to Wikipedia. Let me see, which will it be.....
5. LaTeX, LaTeX, LaTeX!!!

6. Sorry LaTex
7. Lol cool. I know how to use Gaussian elimination but I'm just not very good at it...
Lol cool. I know how to use Gaussian elimination but I'm just not very good at it...
If you get stuck post your working...someone is sure to help.
9. (Original post by rnd)
Sorry LaTex
Unless I'm mistaken, along with a great many others, it is the capital Greek letter chi.
10. I've got a hell of a lot of workings and it'd be hard to post too. But I get z=(b-a+2)/a, sound ok?
11. (Original post by D-Day)
Unless I'm mistaken, along with a great many others, it is the capital Greek letter chi.
12. (Original post by rnd)
"LaTeX (pronounced Latec - the x is actually a chi symbol)"

From the Wiki.
13. (Original post by D-Day)
"LaTeX (pronounced Latec - the x is actually a chi symbol)"

From the Wiki.
Thanks
14. I realize I am far too pedantic sometimes. It's an affliction.

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